Arrowhead Union High School District, Wisconsin

Arrowhead Union High School District is a secondary (high school) district in Waukesha County, Wisconsin, for grades 9–12. About 35,132 people live in it (2020–2024 estimate). It covers 62.1 sq mi (161 km²) of land.

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Arrowhead Union High School District in Wisconsin
Arrowhead Union High School District and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
35,132 ± 1,049
Grades
9–12
Type
Secondary (high school) district
County
Waukesha County
Land area
62.1 sq mi (161 km²)
Median household income
$120,736 ± $5,624
Median home value
$499,500 ± $22,363
Water area
5.54 sq mi (14.4 km²)
State
Wisconsin
Census code (GEOID)
5506180
Coordinates (central point)
43.131641, -88.347179

These coordinates mark a central point for the district, not a school or an address. Population, income and home value: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 20, 2026.

Towns, townships and communities in Arrowhead Union High School District, largest first

  1. Hartland (village)9,972 people
  2. Town of Merton8,278 people
  3. Merton (village)3,550 people
  4. Nashotah (village)1,354 people
  5. Chenequa (village)742 people
  6. North Lake (CDP)348 people

A town, township, city or borough is listed when at least half its land is in the district; a community, when its central point is. Near a district line, an address can belong to the district next door.

Bordering secondary (high school) districts, nearest first

  1. Hartford Union High School District12 mi north

These share a boundary with Arrowhead Union High School District. Distances are straight lines between central points.

Before using this answer for enrollment

A district boundary doesn’t decide which school a student attends; the district’s attendance zones and rules do. Confirm the full address and grade with Arrowhead Union High School District before you rely on it.

See its schools and enrollment on NCES ↗

Find the school district where you are now or find your town or township.